Acetyl-L-Carnitine is a highly bioavailable form of L-Carnitine and is able to effectively cross the blood-brain barrier.* Acetyl-L-Carnitine assists the critical conversion of choline into acetylcholine. Acetylcholine is a key chemical messenger in the brain and promotes normal and healthy brain function including memory and concentration.* It also helps transform fats into energy and supports normal muscle movement.* Natural Factors amino acids are the highest quality pharmaceutical grade products available